The rho factor binds to a site on the mRNA and uses its Blank______ activity to dissociate the RNA from the DNA template. Multiple choice question. polymerase helicase RNase topoisomerase
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The rho factor is a protein that plays a role in terminating transcription in prokaryotes. Show more…
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In the OriC replication origin in E. coli, the DNA unwinding element (DUE): A. contains 4 repeats of a 9 base pair consensus sequence B. binds 8 molecules of DnaA protein C. contains 3 repeats of a 13 base pair consensus sequence D. binds the DnaB protein E. both Which of the following describes the function of the factor, rho? Rho is required for A. correct termination of transcription B. RNA polymerase/promoter binding C. correct initiation of transcription D. catabolite repressor binding to promoters E. elongation of the growing RNA chain All of the following statements about RNA polymerase and DNA polymerase are correct EXCEPT A. both require a template B. both require nucleoside triphosphates as substrates C. both elongate in the 5' to 3' direction D. both require a primer E. both are required for replication in certain systems
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A strain of bacteria possesses a temperature-sensitive mutation in the gene that encodes the rho subunit. At high temperatures, rho is not functional. When these bacteria are raised at elevated temperatures, which of the following effects would you expect to see? Explain your reasoning for accepting or rejecting each of these five options. a. Transcription does not take place. b. All RNA molecules are shorter than normal. c. All RNA molecules are longer than normal. d. Some RNA molecules are longer than normal. e. RNA is copied from both DNA strands.
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